EP 1772486 A1 20070411 - Polyethylene composition for injection moulding with improved stress crack/stiffness relation and impact resistance
Title (en)
Polyethylene composition for injection moulding with improved stress crack/stiffness relation and impact resistance
Title (de)
Polyethylenmassen zum Spritzgiessen mit verbesserter Spannungsrissbeständigkeit / -steifheitsrelation und Schlagzähigkeit
Title (fr)
Composition à base de polyéthylène pour moulage par injection avec une relation résistance améliorée contre fracture / rigidite et de resistance aux impacts
Publication
Application
Priority
EP 05021885 A 20051007
Abstract (en)
The present invention relates to a polyethylene composition wherein (i) the composition has an MFR 2 of 0.05 to 100 g/10min, (ii) the environmental stress crack resistance ESCR measured in hours according to ASTM 1693, condition B and E-modulus EM measured according to ISO 527-2:1993 in MPa satisfy the following relation: ESCR ‰¥ - EM h / MPa + 1150 h .
IPC 8 full level
C08L 23/04 (2006.01)
CPC (source: EP US)
C08L 23/04 (2013.01 - EP US); C08L 23/06 (2013.01 - EP US); C08L 2205/02 (2013.01 - EP US)
C-Set (source: EP US)
Citation (search report)
- [X] EP 1146077 A1 20011017 - BOREALIS TECH OY [FI]
- [X] WO 2004007610 A1 20040122 - STARITA JOSEPH M [US]
- [X] WO 2004048468 A1 20040610 - BOREALIS TECH OY [FI], et al
- [XA] EP 1574549 A1 20050914 - BOREALIS TECH OY [FI]
- [X] EP 1460105 A1 20040922 - BOREALIS TECH OY [FI]
- [X] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 09 30 July 1999 (1999-07-30)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1772486 A1 20070411; AT E538172 T1 20120115; CN 101283036 A 20081008; CN 101283036 B 20110330; EA 200800732 A1 20080829; EP 1931729 A1 20080618; EP 1931729 B1 20111221; ES 2375839 T3 20120306; US 2008224354 A1 20080918; US 7947783 B2 20110524; WO 2007042216 A1 20070419
DOCDB simple family (application)
EP 05021885 A 20051007; AT 06806088 T 20061006; CN 200680036968 A 20061006; EA 200800732 A 20061006; EP 06806088 A 20061006; EP 2006009683 W 20061006; ES 06806088 T 20061006; US 8888106 A 20061006